Seismic assessment of out-of-plane loaded unreinforced masonry walls in multi-storey buildings

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dc.contributor.author Derakhshan, H en
dc.contributor.author Dizhur, Dmytro en
dc.contributor.author Griffith, MC en
dc.contributor.author Ingham, Jason en
dc.date.accessioned 2014-08-20T22:22:13Z en
dc.date.issued 2014 en
dc.identifier.citation Bulletin of the New Zealand Society for Earthquake Engineering, 2014, 47 (2), pp. 119 - 138 en
dc.identifier.issn 1174-9857 en
dc.identifier.uri http://hdl.handle.net/2292/22786 en
dc.description.abstract A procedure is proposed to evaluate the dynamic out-of-plane stability of cracked unreinforced masonry (URM) walls located in multi-storey URM buildings. The equations of dynamic motion are derived from first principles and representative single-degree-of-freedom (SDOF) models are proposed. The models have nonlinear stiffness properties that correspond to the restoring gravitational forces. A method is suggested to transform the nonlinear problem to a corresponding linear equivalent so that conventional spectral methods can be used to calculate wall response. The dynamic interaction between the URM building as the main structural system and the out-of-plane loaded walls as secondary elements is addressed by developing floor response spectra. Several buildings were assumed in a parametric study and subjected to code-compatible ground motion records. The absolute acceleration response at floor levels was calculated and the response spectra for that modified acceleration were subsequently obtained. The results from the study suggest that modifications should be made to the equations proposed for the Parts response spectra in the New Zealand seismic loading standard, NZS 1170.5:2004, in order to calculate the spectral response of out-of-plane loaded URM walls. Several worked examples are presented to demonstrate application of the procedure. en
dc.relation.ispartofseries Bulletin of the New Zealand Society for Earthquake Engineering en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Seismic assessment of out-of-plane loaded unreinforced masonry walls in multi-storey buildings en
dc.type Journal Article en
pubs.issue 2 en
pubs.begin-page 119 en
pubs.volume 47 en
pubs.author-url http://hdl.handle.net/2292/22786 en
pubs.end-page 138 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 449510 en
pubs.org-id Engineering en
pubs.org-id Civil and Environmental Eng en
pubs.record-created-at-source-date 2014-08-21 en


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